JP2011238239A - Portable communication equipment, deleting method and deleting program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable communication equipment capable of assisting a user to delete a file when deleting the file stored in the portable communication equipment.SOLUTION: The portable communication equipment stores a plurality of references in advance such as data size of files or presence/absence of setting copyrights of the files, for sequencing the files stored in own equipment. And when selecting the files to delete, the user selects any of the references. The portable communication equipment sequences the files based on the reference selected by the user, and displays list of files in sequential order from an upper part to a lower part of a display screen in the portable communication equipment.

Description

    The present invention relates to a file deletion technique for a mobile communication device.

  In recent years, the memory capacity of mobile communication devices such as mobile phones has increased, and it has become possible to store many files such as many music files and image files used for the standby screen. Yes.

  However, although the storage capacity is increasing, the capacity is limited, so these files obtained by downloading or deleting are appropriately deleted by the user due to the free capacity of the mobile communication device etc. It will be done.

  Patent Document 1 discloses a mobile phone that deletes an attached file after the file is attached to a mail and transmitted.

JP 2004-151892 A

  By the way, when a user tries to delete a file, the user basically selects which file to delete. However, for reasons such as the number of files, the user can easily delete the file. You may not be able to find the file. Also, the occupancy rate of chargeable contents and copyright files in the memory of mobile communication devices has increased, and it has become difficult for users to understand all such information and delete files.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a mobile communication device that can present a file that is considered suitable for deletion to the user when attempting to delete the file. And

  In order to solve the above-described problem, the mobile communication device according to the present invention includes a storage unit that stores in advance a plurality of criteria for ordering each file in the memory, and specification of a criterion from the criteria by a user. A reference receiving unit for receiving the file, an ordering unit for ordering the files based on the criteria relating to the designation received by the reference receiving unit, and outputting information on the file based on the order ordered by the file ordering unit Output selecting means, a selection receiving means for receiving selection of one or more file information by the user from the output file information, and a file corresponding to information for identifying the file selected by the selection receiving means. And deleting means for deleting.

  Here, the ordering of files means that the files are ordered. Further, the output performed by the output means is performed in order for the user to recognize the ordered file. For example, the output is displayed on the display of the own device, or the data is transmitted to the television or the like and the television screen is displayed. Or display on top.

  With the configuration as described above, the mobile communication device sorts the files based on the criteria selected by the user, displays a list of file names in the sorted order, and may be subject to deletion when deleting files to the user. It is possible to present a file with a high level to the upper level and cause the user to delete the file. The rearranged order is suitable for deletion from the top in the originally selected criteria, and may be deleted by displaying the file name corresponding to the file located at the top from the top High-priority files can be displayed with priority.

  The reference receiving unit includes a first reference receiving unit that allows a user to specify a first ordering reference, and a second reference receiving unit that allows a user to specify a second ordering reference. The ordering means orders the files according to the first ordering standard, and orders each file according to the first ordering standard according to the second ordering standard. As good as

  Thereby, the mobile communication device can rearrange files based on two criteria. If the number of files is large, it may not be possible to find a file that the user wants to delete with a single sort. However, by providing the above configuration, after the ordering is performed once, the files are rearranged according to another standard for the second time for the files that are in the same order in the first ordering. Since the file can be displayed, the user can more easily search for a file to be deleted.

  The standard for ordering the files selected by the standard receiving means is either the file data size, the file extension, the file access date / time, the file access count, or the file copyright. The ordering means, when the selected criterion is a criterion related to the data size of the file, in descending order from the largest data size, and in the case of the criterion related to the file extension, In the order of file extensions, the file access date / time is based on the file access date from the oldest to the newest, and the file access count is based on the file access count in ascending order. In the case of a standard related to copyright, ordering may be performed in the order of those having no copyright.

  As a result, the mobile communication device can sort the files according to the size of the file, the size, the type, the access date and time, the number of accesses, or the presence or absence of copyright. .

  The portable communication device further includes a file storage unit that stores a file by changing a folder in which the file is stored depending on an attribute of the file, and a folder designation receiving unit that accepts a folder designation by a user, and the ordering unit includes: The ordering may be performed only on the files stored in the folder related to the designation received by the folder designation receiving means.

  Accordingly, the mobile communication device can perform ordering on a plurality of files stored in a specific folder such as a music folder. This configuration is useful when the user knows from the beginning that he wants to delete a particular type of file.

A file deletion method in a mobile communication device according to the present invention includes a storage step in which a plurality of criteria for ordering each file in a memory are stored in advance, and a criterion for accepting specification of a criterion from a criterion by the user An accepting step, an ordering step for ordering the files based on the criteria related to the designation accepted by the criteria accepting means, and display of information for identifying each file based on the order ordered by the file ordering means A display step for determining and displaying a position, a selection reception step for receiving selection by the user of one or more information from the information for identifying the displayed file, and identifying the file selected by the selection reception means And a deletion step of deleting a file corresponding to the information.

  The file deletion program in the mobile communication device according to the present invention is a deletion program for causing the computer of the mobile communication device to execute each procedure for deleting the file, and each procedure orders each file in the memory. A storage step for storing a plurality of criteria in advance, a criteria receiving step for accepting specification of a criterion by a user from among the criteria, and ordering files based on the criteria relating to the designation received by the criteria accepting means An ordering step for determining, a display position of information for identifying each file based on the order ordered by the file ordering means, a display step for displaying, and information for identifying the displayed file A selection receiving step for receiving selection of one or more pieces of information by the user, and the selection receiving means Characterized in that it comprises a deletion step of deleting the corresponding file to the information identifying the file.

  With the above method or program, the mobile communication device can rearrange the files according to the criteria desired by the user, present the file names to the user in that order, and allow the user to delete the files.

It is a functional block diagram of a mobile phone according to the present invention. It is the file list figure which showed an example of the information which corresponds to the file which the mobile telephone concerning this invention memorize | stores, and each file. FIG. 6 is a screen diagram showing an example of a screen displayed on the display when a file is deleted in the mobile phone according to the present invention. (A) It is a file list figure before the mobile telephone which concerns on this invention rearranges a file. (B) It is the file list figure which showed the order after the mobile telephone which concerns on this invention rearranged the file based on file size. 5 is a flowchart showing an operation at the time of file deletion in the first embodiment of the mobile phone according to the present invention. 5 is a rearrangement reference table showing reference areas for rearrangement required when rearranging files in the second stage of the mobile phone according to the present invention in the second stage. It is the screen figure which showed an example of the screen displayed on the screen of a mobile telephone, when rearranging with two references | standards of the mobile telephone which concerns on this invention. (A) It is the list figure which showed an example of the file order after 1st ordering was performed based on file size with a mobile telephone. (B) List view showing an example of the order of files after the first ordering is performed based on the file size on the mobile phone and then the second ordering is performed based on the presence or absence of copyright It is. 5 is a flowchart showing an operation in the second embodiment of the mobile phone according to the present invention.

  Hereinafter, a mobile phone as an embodiment of a mobile communication device according to the present invention will be described with reference to the drawings.

<Embodiment>
The mobile phone according to the present invention rearranges and displays a file by a sorting method selected by the user when deleting the file, and assists the user in deleting the file. The configuration, data to be handled, and operation of the mobile phone will be described below.

<Configuration>
First, the configuration of the mobile phone according to the present invention will be described with reference to the functional block diagram of FIG.

  A cellular phone 100 according to the present invention includes a communication unit 110, an antenna 111, an audio processing unit 120, a microphone 121, a speaker 122, a display unit 130, an operation unit 140, a storage unit 150, and a control unit 160.

  The communication unit 110 demodulates the received signal received from the antenna 111 into a received voice signal and a received data signal, and outputs the demodulated received voice signal to the voice processing unit 120 and the received data signal to the control unit 160. Further, it has a function of modulating a transmission voice signal that has been A / D converted from the voice processing unit 120 and a transmission data signal such as an electronic mail given from the control unit 160 and outputting the modulated data signal from the antenna 111.

  The voice processing unit 120 D / A converts the received voice signal output from the communication unit 110 and outputs it to the speaker 122, and A / D converts the transmission voice signal acquired from the microphone 121, and outputs the generated signal. It has a function of outputting to the communication unit 110.

  The display unit 130 is a monitor realized by an LCD (Liquid Crystal Display) or the like, and has a function of displaying an image according to an instruction from the control unit 160, and displays a standby screen, a mail document, and the like.

  The operation unit 140 includes a group of keys such as a numeric keypad, an on-hook key, an off-hook key, a direction key, and an enter key, and has a function of receiving a user operation and transmitting the received operation content to the control unit 160.

  The storage unit 150 includes a ROM (Read Only Memory) and a RAM (Random Access Memory), and is realized by a small hard disk, a nonvolatile memory, or the like. The storage unit 150 has a function of storing various programs for controlling each unit of the mobile phone, and various data including a waiting image and a ringing melody. Files such as these waiting images are stored in a user memory area (not shown) of the RAM. The files that can be deleted by the user are basically only the files included in the user memory area. As a memory area other than the user memory area, there is a system area, which stores programs and data essential for the operation of the mobile phone 100 stored in the ROM or RAM. The file deletion program 151 according to the present invention is stored in the system area.

The control unit 160 controls each unit of the mobile phone 100, and is a CPU (Central Processing Unit) that reads and controls various control programs stored in the storage unit 150. When the operation unit 140 receives a key input for displaying a list of files in order to instruct which file to delete when the user deletes the file, the file deletion program 151 is read from the storage unit 150 and the file is displayed according to the program. It has a function of rearranging files to make it easier to find a file that the user wants to delete when deleting, and deleting a file selected by the user.

<Data>
Next, file data handled by the mobile phone 100 will be described. Such files include image data, ringtones, movies, text data, game applications, and the like.

FIG. 2 shows an example of a data list of files stored in the storage unit 150 of the mobile phone 100. As shown in the figure, the file data list 200 includes a file size 202, a file type 203, an access date and time corresponding to the file name 201 so that the file data list 200 can be easily rearranged when the file is deleted. 204, the number of accesses 205, and a copyright 206 are described. Although not shown, each file name corresponds to the data of each file.

  The file size 202 is the data capacity of the file, and a numerical value is shown in units of kilobytes.

  The file type 203 is a file data format, in which the file extension is described here.

  The access date / time 204 indicates the last date / time when the file was accessed, and the date / time is updated each time the mobile phone 100 accesses the file.

  The access count 205 means the number of times the file has been accessed since it was stored in the storage unit 150 of the mobile phone 100, and is stored in the storage unit 150 for each file. It will be added.

  The copyright 206 is information indicating whether a copyright is set for the file. Basically, ringtones downloaded from billing sites are set with copyright, and ringtones created by individuals using their mobile phones are often set without copyright. This copyright information serves as a reference for determining whether or not the file has been obtained by the user paying money. As for the presence or absence of copyright, the copyright information is set to “Yes” for those downloaded from the charging site.

  The storage unit 150 also stores information on how to rearrange the files in accordance with the criteria for rearranging the files, the file size, the file type, the access date, the number of accesses, and the copyright. . Specifically, in the case of file size, the number of accesses in descending order from the largest data capacity, in the order of a predetermined extension in the case of file type, and in ascending order from the oldest in the case of access date / time. In the case of copyright, information is stored that is sorted in ascending order from the least frequently accessed, and in the case of copyright, the information is sorted in the order of those without copyright.

  Based on these data, the mobile phone 100 can rearrange files. The file rearrangement method will be described later as the operation of the mobile phone.

<Operation>
Next, the operation of the mobile phone 100 in file deletion will be described using the flowchart shown in FIG.

  First, a file deletion instruction is received from the user via the operation unit 140, and the control unit 160 reads and activates the file deletion program 151 (step S501). Based on the file deletion program 151, the mobile phone 100 operates.

Then, the control unit 160 first displays the file names as information for identifying the files on the display unit 130 in order of name or storage order. The user can now recognize files that can be deleted. The user selects this file name and deletes the file. The cellular phone 100 detects whether there is a request for displaying an option menu (step S503). When there is no request for displaying the option menu (NO in step S503), it is detected whether there is a selection input from the displayed file names (step S505). The option menu here is a GUI (Graphical User Interface) showing a list of selection items such as criteria for rearranging the files selected by the user, file size, file type, access date, access count, and copyright. The option menu display request is made when a predetermined key corresponding to the option menu display request of the operation unit 140 is pressed.

  Then, the selection of the deletion file by the user is detected (YES in step S505), all the information corresponding to the selected file name is deleted from the storage unit 150 (step S515), and the process ends. If selection of the file name corresponding to the file to be deleted is not detected (NO in step S505), the process returns to step S503 to perform the subsequent processing.

  If there is an option menu display request in step S503 (YES in step S503), control unit 160 causes display unit 130 to display the option menu (step S507). This option menu is a menu that displays a list of criteria for rearranging files when deleting. The user sees the option menu and determines whether to sort the files. If there is a selection input for the sorting criterion (YES in step S509), file ordering processing is performed based on the selected criterion (step S511). Here, the file ordering process is actually performed by ordering file identifiers such as a file name for identifying each file.

  In the case of the file size, this ordering process is performed in descending order from the data having the largest data capacity. This is because the larger data capacity can open a larger storage capacity in the user memory area of the mobile phone.

  When the file type is selected, the file extension is set in ascending order of the file extension determined by the manufacturer definition or the user definition, for example, jpeg, gif, mp3.

  In the case of the access date and time, ordering is performed so that the oldest access date and time are the newest. This is because an old access date / time is long unused by the user and is likely to be unnecessary for the user.

  In the case of the number of accesses, order is made in ascending order from the least number of accesses. This is because an access with a small number of accesses is less frequently used and is likely to be unnecessary for the user.

  In the case of copyrights, order them from those without copyrights to those with copyrights. This is because the copyrighted files are mostly downloaded from the charging site, and the user does not want to delete the files obtained with payment.

  After completing the ordering, the display unit 130 displays a list of the ordered files and presents them to the user. The mobile phone 100 waits until a file to be deleted is selected by the user who has viewed the presented list (NO in step S513). If there is a selection input of a file to be deleted (YES in step S513), the selected file is deleted from the storage unit 150 (step S515), and the process ends. The file is selected by moving the cursor up and down the direction keys and pressing the enter key when the cursor is on the target file name.

  The above is the operation of the mobile phone 100 at the time of file deletion. The above operation will be described with reference to FIGS.

  First, the mobile phone 100 stores a file list as shown in FIG. 2, and the user intends to delete one of the files. The user inputs a file deletion instruction. Then, as shown in FIG. 3A, the display unit 130 of the mobile phone 100 displays a list of file names in an attempt to delete the file. If the user determines from the list of file names that the file to be deleted is difficult to understand, the user inputs an option menu display instruction. Actually, this is done by pressing the corresponding option menu display key.

  Upon receiving the option menu display instruction, the control unit 160 issues an option menu display instruction to the display unit 130.

  Then, the display unit 130 displays an option menu as shown in FIG. As shown in the figure, the option menu shows a list of sort criteria that may be useful for deleting files.

  From this list, the user moves the selection cursor using the direction key, selects the sorting criterion, and presses the enter key. Here, it is assumed that sorting by file size is selected. When the sorting by the file size is selected, the files arranged as shown in FIG. 4A are rearranged as shown in FIG. 4B, and FIG. ), The file names are displayed in the sorted order. If it is not displayed here, if you press the direction key and scroll down, the file names that are not displayed are also displayed.

  The user recognizes that the file displayed at the top is suitable for file deletion, selects the file to be deleted from the displayed files as shown in FIG. 3C, and deletes the file. Go and finish.

<Embodiment 2>
In the second embodiment, unlike the first embodiment, when it is difficult for the user to understand a file that the user wants to delete by only one sort, the sort order by the first sort is maintained to some extent, Furthermore, it will be described that sorting is performed again according to another criterion.

  Hereinafter, the mobile phone according to Embodiment 2 will be described with reference to the drawings.

<Configuration>
Since the mobile phone according to Embodiment 2 is almost the same as that of mobile phone 100 according to Embodiment 1, Embodiment 2 will also be described according to the configuration of mobile phone 100. Although not shown in the figure, the storage unit 150 stores a sorting reference table 600 as shown in FIG. 6 although the configuration differs from the mobile phone according to the second embodiment and the mobile phone 100 according to the first embodiment. In the point.

<Data>
Here, the rearrangement reference table 600 stored in the storage unit will be described.

  The rearrangement reference table 600 shows a range to be subjected to the second rearrangement when the second rearrangement is performed while maintaining the rearrangement order to some extent after the rearrangement is performed based on the first reference. It is a table. If the files are rearranged according to two unrelated criteria and the file list is displayed in a one-dimensional direction on the small screen of the mobile phone, the second order is to determine the order of the files. Sorting criteria are required. The rearrangement reference table 600 is a table for determining the reference.

  As shown in FIG. 6, the sorting reference table 600 is divided into which level 602 each corresponds to the file size 611, the file type 612, the access date 613, the access date 614, and the copyright 615 as the first reference contents 601. It shows what files are included in each level. For example, in the case of the file size 611, level 1 includes files having a data capacity of 1001 kilobytes or more, and level 2 includes files of 501 kilobytes to 1000 kilobytes.

  In the second rearrangement, after the first rearrangement is performed, the mobile phone orders the files included in each level for each level, and a combination of them is the mobile phone 100. It is displayed on the display unit 130. For example, when the first reference is the access date / time, the files are ordered from the oldest access date / time to the new one, and then the level corresponding to the access date / time 613 is read out and within each level. Are rearranged according to the second criterion.

<Operation>
From here, the operation of the mobile phone according to Embodiment 2 will be described based on the flowchart shown in FIG.

  First, the user selects a first sorting criterion. The mobile phone 100 receives the selection (step S901) and performs an ordering process based on the selected first reordering criterion (step S903). The process up to this point is the same as in the first embodiment. If the second criterion is selected (YES in step S905), the rearrangement criterion table 600 is read from the storage unit 150 (step S907), and the first criterion and the first criterion content column are compared. Then, the corresponding first reference internal levels are read out and the ordered files are separated (step S909). Then, with respect to the files in each level divided and classified, the files are ordered for each level based on the second standard (step S911). Then, the ordered files are displayed in a list from the level 1 in order from the top to the bottom with the top of the screen as the top (step S913). Thereafter, the user selects a file to be deleted by looking at the list of displayed file names and deletes the file.

  Next, a specific example of the operation of the mobile phone according to Embodiment 2 will be described with reference to the flowchart of FIG. 9 using the drawings of FIGS. Here, the user selects the file size as the first criterion and the presence / absence of copyright as the second criterion.

  First, when the user inputs a file deletion request via the operation unit 140 in order to delete a file, a list of files is displayed in order of name as shown in FIG. A user who does not know which file should be deleted at this time performs an operation for calling an option menu. Then, an option menu for selecting a criterion for rearranging the files as shown in FIG. 7B is displayed on the display unit 130. Looking at the option menu, the user operates the direction key of the operation unit 140 to move the cursor and select the sorting reference (step S901). Here, the file size is selected.

  Then, the control unit 160 orders the files in descending order from the largest data capacity (step S903), and temporarily stores the files in the storage unit 150.

  If the second sorting criterion is selected (YES in step S905), the control unit 160 first reads the file size 611 field of the sorting criterion table 600 (step S907). Here, it is assumed that the user selects sorting by copyright as shown in FIG. Therefore, information corresponding to the copyright is read out, and the files in the order stored in the storage unit 150 are classified for each level. Then, the files included in level 1 are ordered from a non-copyrighted file to a file with the presence or absence of copyright information. Subsequently, the files included in level 2 are ordered according to the presence or absence of copyright information. Hereinafter, the files included in each level are ordered based on the presence or absence of copyright information.

  Each group of files ordered at each level is stored in the storage unit 150 in sequence from level 1, and the upper part of the display unit 130 is higher in the order in the order shown in FIG. ) Is displayed. In FIG. 7D, information on the data capacity of the file and whether or not there is a copyright is also described next to the name of the file. The file size is expressed in kilobytes, and the presence / absence of copyright is indicated by ○ ×. Actually, as shown in FIG. 8, after the original file group as shown in FIG. 8 (a) is ordered by file size, it is sorted by each level and rearranged according to the second standard. The ordering is performed as shown in FIG. For example, in FIG. 8A, it can be seen that the data corresponding to the file name “m” and the file name “c” belong to level 2 by the file size 611 of the sorting reference table 600 in the file size. Since “c” has no copyright, it can be seen that it is higher than the copyrighted file “m”. FIG. 8A is a list of files after the file groups are ordered by file size as shown in the first embodiment, and FIG. 8B is a file group with file sizes. It is the list figure of the file after being ordered by the presence or absence of the copyright after being ordered.

  Finally, the user searches for a file to be deleted from the rearranged file names, inputs to delete the file, and ends.

<Supplement>
As described above, the mobile phone according to the present invention has been described based on the above embodiment, but it is needless to say that the embodiment of the present invention is not limited to this. Hereinafter, the modified example will be described.

(1) In the second embodiment, the reordering reference table 600 is stored in the mobile phone in advance, but the range of the level by the user, that is, which range of files belongs to each level. It may be possible to change. Thereby, rearrangement for deletion closer to the user's preference of the mobile phone can be performed.

(2) In the above embodiment, the copyright information is set to “Yes” for the file downloaded from the charging site, but this is set according to the user's preference. May be. For example, copyright information “Yes” may be set only for content downloaded from a specific site, or may be set from the beginning on the content distribution side.

(3) In the above embodiment, there are five sort criteria for file size, file type, file access last date, file access count, and copyright status. This is not a limitation. In addition to the reference in the embodiment, the data may be rearranged depending on whether the user is protected. If a file is protected by the user, if the file is protected, the file cannot be deleted. Suppose that a file that is not protected is placed at the top.

(4) In the second embodiment, the sorting reference table 600 is stored in advance in the mobile phone, but the range of each level may be freely changed by the user's operation. As a result, the files can be rearranged more like a user.

(5) In the second embodiment, the files are rearranged once according to the first criterion, and then divided into regions and rearranged according to the second criterion with respect to each region. However, other methods may be used. . For example, the file is first divided into the levels shown in the rearrangement criterion table 600 shown in FIG. 6 without rearranging at the level corresponding to the first criterion. Then, the file ordering process according to the second standard may be performed for each divided level, and the level 1 may be displayed in a higher order.

(6) In the above embodiment, the files are displayed in the vertical direction. However, the files may be arranged in the horizontal direction and scrolled in the horizontal direction with the left side of the screen at the top.

(7) In the above embodiment, the ordering in the file deletion is for all the data in the user data area, but this is not limited thereto. For example, in the user data area, it is often classified according to the type of data file such as a music folder or an image folder, and ordering may be performed only for files included in any of these folders. Good. When the user knows what type of file he wants to delete from the beginning, the burden on the mobile phone in ordering can be reduced somewhat.

(8) In the second embodiment, the ordering of the files is performed twice. However, this may not be performed twice, and the third and fourth ordering of the files may be performed. .

(9) In the above embodiment, a list of file names is displayed on the display unit 130 in the rearranged order, and the user selects a file to be deleted by looking at it. The contents of the file may be confirmed by pressing a predetermined key together. Thus, when the user deletes a file, the user can check the contents of the file that he / she wants to delete and determine whether or not the file can be deleted.

(10) In the above embodiment, the ordered file is displayed on the display unit 130 of the mobile phone, but this may be displayed on a display other than the display unit 130. For example, it is conceivable that ordered file data is transmitted to a television receiver or a printer with an LCD to display the ordered file.

(11) In the above embodiment, the present invention has been described by taking a mobile phone as an example of the mobile communication device. However, this need not be a separate mobile phone, for example, a portable information terminal such as a PDA (Personal Digital Assistance) It may be.

  The present invention can be utilized as a mobile phone.

DESCRIPTION OF SYMBOLS 100 Cellular phone 110 Communication part 111 Antenna 120 Audio | voice processing part 121 Microphone 122 Speaker 130 Display part 140 Operation part 150 Storage part 151 File deletion program 160 Control part 200 File list 600 Sorting reference table

Claims (3)

A plurality of files, a storage unit that stores a plurality of criteria for rearranging the plurality of files in advance, a standard receiving unit that receives designation of any one of the plurality of criteria stored in the storage unit,
Display means for displaying a list of files rearranged based on the criteria accepted by the criteria accepting means;
Selection accepting means for accepting selection of a file from a list of files displayed on the display means;
Deleting means for deleting the file received by the selection receiving means,
The display unit displays the contents of a file based on an operation from a user when displaying the list of files. The portable communication device further comprises folder designation accepting means for accepting designation of a folder for storing the file stored in the storage unit,
2. The portable communication device according to claim 1, wherein the display unit displays a list of files stored in a folder related to the designation received by the folder designation receiving unit. A data deletion program for causing a computer of a mobile communication device including a plurality of files and a storage unit that stores a plurality of criteria for rearranging the plurality of files in advance to execute a processing procedure for data deletion,
The processing procedure includes a criterion receiving step for accepting designation of any criterion from among a plurality of criteria stored in the storage means;
A display step for displaying a list of files rearranged based on the criteria accepted in the criteria accepting step;
A selection receiving step for receiving selection of a file from the list of files displayed in the display step;
A deletion step of deleting the file received in the selection reception step,
A data deletion program characterized in that the display step displays the contents of a file based on an operation from a user when the list of files is displayed.